Manufacturing Method and Non-Transitory Computer Readable Medium, Manufacturing Device, Assistance, Method and Non-Transitory Computer Readable Medium, and Assistance Device

A manufacturing apparatus which manufactures a concentrated solution by concentrating a predetermined feed solution using a concentrating apparatus, wherein:

• the feed solution at least includes a solute, a first solvent and a second solvent;
• the concentrating apparatus has a concentrating module which concentrates the feed solution via a concentrating membrane;
• the manufacturing apparatus comprises:
• an input unit which inputs target concentrated solution information including target composition of the concentrated solution;
• an acquiring unit which acquires current concentrated solution information including current composition of the concentrated solution, and previous concentrated solution information including previous composition of the concentrated solution;
• a mass transfer coefficient calculation unit which calculates, based on the current concentrated solution information and the previous concentrated solution information, a mass transfer coefficient of the concentrating membrane;
• a driving force calculation unit which calculates, based on the current concentrated solution information and the previous concentrated solution information, a driving force for the concentrated solution to pass through the concentrating membrane;
• and
• a predicting unit which calculates, based on the driving force and the mass transfer coefficient, predicted concentrated solution information including composition of the concentrated solution after elapse of a certain period of time.

An assistance method of a concentrating apparatus for producing a concentrated solution concentrated from a predetermined feed solution, wherein:

• the feed solution at least includes a solute, a first solvent and a second solvent;
• the concentrating apparatus includes a concentrating module which concentrates the feed solution via a concentrating membrane;
• the assistance method comprises:
• inputting target concentrated solution information including target composition of the concentrated solution;
• acquiring current concentrated solution information including current composition of the concentrated solution;
• acquiring previous concentrated solution information including previous composition of the concentrated solution;
• calculating, based on the current concentrated solution information and the previous concentrated solution information, a mass transfer coefficient of the concentrating membrane;
• calculating, based on the current concentrated solution information and the previous concentrated solution information, a driving force for the concentrated solution to pass through the concentrating membrane;
• and
• calculating, based on the driving force and the mass transfer coefficient, predicted concentrated solution information including a composition of the concentrated solution after elapse of a certain period of time.

An assistance apparatus of a concentrating apparatus for producing a concentrated solution concentrated from a predetermined feed solution, wherein:

• the feed solution at least includes a solute, a first solvent and a second solvent;
• the concentrating apparatus has a concentrating module which concentrates the feed solution via a concentrating membrane;
• the assistance apparatus comprises:
• an input unit which inputs target concentrated solution information including target composition of the concentrated solution;
• an acquiring unit which acquires current concentrated solution information including current composition of the concentrated solution, and previous concentrated solution information including previous composition of the concentrated solution;
• a mass transfer coefficient calculation unit which calculates, based on the current concentrated solution information and the previous concentrated solution information, a mass transfer coefficient of the concentrating membrane;
• a driving force calculation unit which calculates, based on the current concentrated solution information and the previous concentrated solution information, a driving force for the concentrated solution to pass through the concentrating membrane;
• and
• a predicting unit which calculates, based on the driving force and the mass transfer coefficient, predicted concentrated solution information including composition of the concentrated solution after elapse of a certain period of time.